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Finding the Fourth Proportional to 60,558.80, 90,838.20 and 54,435.20

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Solution

The fourth proportional to 60,558.80, 90,838.20 and 54,435.20 is: 81,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.80 : 90,838.20 = 54,435.20 : x
  2. Step 2: Convert to fraction form
    60,558.80/90,838.20 = 54,435.20/x
  3. Step 3: Cross multiply
    60,558.80x = 90,838.20 × 54,435.20
  4. Step 4: Simplify right side
    60,558.80x = 4,944,795,584.64
  5. Step 5: Solve for x
    x = 4,944,795,584.64/60,558.80
  6. Step 6: Final answer
    x = 81,652.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.